Electronic Throttle Control Relay: Inspection

Check that the electronic throttle control relay has no deformation, cracks or other damages.

Measure the resistance between electronic throttle control relay terminals.

Fig 1: Electronic Throttle Control Relay Circuit Diagram

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Standard
1 and 2	1 MΩ or more
3 and 4	93.8 - 136.4 Ω (when 20°C (68°F))

Connect terminal No. 3 to battery positive terminal and terminal No. 4 to the battery ground terminal, and check the resistance between the electronic throttle control relay terminals.

Fig 2: Electronic Throttle Control Relay Circuit Diagram

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Standard
1 and 2	Less than 1 Ω